MOSCOW, April 17 (Reuters) - Aeroflot on Thursday said Ukraine has informed the Russian airline it will impose tight restrictions on the entry of Russian men into the country, where pro-Russian separatist rebellions have broken out.

"Aeroflot is informing passengers about strict restrictions imposed by the Ukrainian authorities on entry into the country," the company said in a statement. It indicated men between the ages of 16 and 60 would be denied entry unless they had proof of a reason to visit, such as family ties or an invitation from a business or individual, or were traveling with their families.